Nortrax David Manchester Road, Ottawa MOTORS, STARTERS, CONTROL CENTRES & WIRING 21 May 2014 Project: PART 1 - GENERAL...

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1 21 May 2014 PART 1 - GENERAL WORK INCLUDED REFERENCE STANDARDS... 1 PART PRODUCTS MOTORS STARTERS AND MOTOR CONTROL MOTOR CONTROL CENTRES STARTERS, CONTACTORS AND MOTOR CONTROL MOTOR CONTROL CENTRES... 5 PART 3 - EXECUTION INSTALLATION AND WIRING INSTALLATION AND WIRING INSTALLATION AND WIRING WARNING NOTICES... 6 INDEX

2 21 May 2014 Page 1 PART 1 - GENERAL 1.1. WORK INCLUDED 1. Comply with Division 1, General Requirements and all documents referred to therein. 2. Provide all labour, materials, products, equipment and services to supply and install the motors, starters, control centres and wiring indicated on the Drawings and specified in this Section of the Specification REFERENCE STANDARDS.1 Provide all labour, materials, products, equipment and services, and perform all work in accordance with the current edition of.1 The Canadian Electrical Code, (CSA C22),.2 EEMAC and NEMA Standards.3 All other standards and regulations referenced by the authorities having jurisdiction. PART PRODUCTS 2.1. MOTORS.1 Provide, 60 cycle, 1750 rpm motors, except where noted, with the following characteristics:.1 under {0.373 kw} [1/2 hp] - single phase, 120 V.2 {0.373 kw} [1/2 hp] and over - 3 phase, 460 V.2 For all motors {.75 kw} [1 hp] up to and including {373 kw} [500 hp], unless specified differently, provide high efficiency T-frame, A.C. three phase motors which meet or exceed the most recent issue of either CSA 390 M 1998, or IEEE 112B, and are approved under the Canadian Electrical Safety Code. Provide 3-phase motors to EEMAC Design B, insulated to Class F with Class B rise, suitable for {40 o C} [104 F] ambient..3 Select motors for quiet continuous operation to suit loads imposed by equipment. Recognize that motor horsepower specified and scheduled are minimum sizes. Include extra costs for larger motors, starters, power wiring and additional control wiring if larger motors are required for alternative equipment accepted as part of the Contract Price..4 Provide motor enclosures as follows:.1 open drip-proof, 1.15 service factor for motors protected from the weather and moisture entrainment to operate satisfactorily at maximum temperature and moisture levels of surrounding air for motors located in air streams..2 totally enclosed fan cooled 1.15 service factor for motors in all other locations..3 provide explosion proof motors where scheduled..5 Equip motors {18 kw} [25 hp] and larger, as well as those smaller but with longer than 10 second starting time, with inherent overheat protection, consisting of thermistors, one for each phase, embedded in the stator windings. Extend wires out to motor terminal box, ready for field wiring into the starter holding coil circuit. Provide manual reset tripping device compatible with starter.

3 21 May 2014 Page 2.6 For variable speed equipment, provide motors which are:.1 Rated for VFD duty/inverter duty in accordance with NEMA MG1, Part Operable from a pulse width modulated (PWM) waveform and shall not saturate while operating at up to 110% of the nameplate voltage..3 Constructed with least Class F insulation..4 Constructed with cast frames..5 Capable of running at 10% full rated speed with the VSD output provided by the drives supplied under Section Capable of withstanding voltage spikes of 1800 V in a rise time of 0.1 microsecond.7 Provided with thermal sensors embedded in the windings with connections extended to the motor terminal box. For motor sizes up to and including {18.6 kw} [25 hp], the thermal sensors may be thermistors. For larger sizes, provide RTDs (Resistive Temperature Device). Embed sensors in that part of the windings which is in the iron for response to both copper and iron temperature..7 Provide single winding, variable torque (high and low speed) 2-speed motors. Provide starter to suit motor requirements..8 Provide motors less than {0.75 kw} [1 hp] with sealed bearings. Provide larger motors with serviceable fill and drain plugs at each bearing. Provide bearings with B 10 design life of at least 100,000 hours STARTERS AND MOTOR CONTROL.1 Refer to Starter and Disconnect Schedule..2 Provide motor control centres, starters and disconnects of a single manufacturer..3 Provide refrigeration machine starters with the refrigeration machines. Manufacturer may be different than other starters..4 Starters factory built into the control panel of packaged equipment may be from a different manufacturer..5 Provide 50,000 SCIA (Short Circuit Interrupting Ampacity) Symmetrical rating for all starters and disconnects..6 For single phase motors, provide manual starters with properly sized thermal overload protection and indicating pilot lights. In finished areas, where identified on the Starter Schedules, recess starters and provide stainless steel flush plates..7 For 3 phase motors and heaters, provide combination magnetic starters and contactors with circuit breakers or fused disconnects, with properly sized thermal overload protection in 3 phases, 120V holding coil, holding coil hold-in contact, and control transformer, pilot lights as scheduled and according to the schedule, either hand/off/automatic switch, on/off or start/stop pushbutton mounted in cover. In addition, make allowance for the factory provision of at least two normally open and two normally closed auxiliary contacts in each starter for interlocking and automatic control of equipment and components. Before final fabrication of starters, refer to detailed controls information and provide any additional auxiliary contacts

4 21 May 2014 Page 3 required to provide the specified interfacing and interlocking. Where fused equipment is specified, include the cost of supplying and installing HRC fuses..8 For single speed motors of {11 kw} [15 hp] or larger, provide closed circuit transition auto transformer combination starters with circuit breakers or fused disconnects and adjustable voltage taps and thermal protectors. Provide other features similar to standard three phase starters..9 Factory provide standard trip overload relay heaters to match nameplate current ratings of motors finally selected and to ensure a maximum 16 second trip at 600% of motor full load current. Include allowance for changing heaters in field to suit job conditions..10 Provide {141 o C} [285 F] trip temperature relays. Provide fully ambient compensated relays where the difference between ambient of motor and ambient of starter may be more than 20 o C..11 In each starter that controls a motor with thermistor protection, provide a latching relay, a pilot light (blue), an auxiliary contact and a reset pushbutton. The latching relay shall control the pilot light (blue) upon activation of thermistor and the auxiliary contact installed in series with the overloads. The reset pushbutton shall be utilized for resetting the latching relay only..12 Provide timing relays in starters equipped with hand/off/automatic or on/off switches, and which serve motors larger than {15 kw} [20 hp]. Set timers as instructed to provide sequenced starting of motors after power outage..13 Provide all contactors and backup contactors required for electric heating equipment..14 Submit electrical field wiring diagrams of the complete motor and heater control system, with all relays and interlocks required for operation as outlined in Starter and Control Contactor Schedule..15 Provide remote start/stop stations where identified in the Starter Schedule. Group starters where multiple units are specified within one area or room..16 Provide remote unfused, motor-rated, disconnect switches of standard and weatherproof design where shown or identified in the Starter Schedule, or where motor is out of sight or further than {9.1 metres} [30 ft] from starter. These shutoff devices shall also cause motorized dampers and valves to return to their normal positions (ie. outside air dampers shall close)..17 Provide double voltage relay in each starter for interface with Fire Control Centre where indicated in Starter and Disconnect Schedule. Coordinate relay coil voltage with Division 16 fire alarm system and CACF supplier..18 For 3 phase, two speed motors or where shown in the starter schedule, provide combination magnetic starters as specified above for single speed, except provide high-off-low-auto cover mounted switch, high and low speed contactors. Provide electrical and mechanical interlocks for the contactors to prevent simultaneous pull in. Provide low speed compelling relay and deceleration relay, factory wired in starter enclosure. On transfer from high to low speed, the low speed contactor shall be locked out for an adjustable time interval..19 For reversing motors or where reversing type starters are scheduled, provide a cover mounted reversing switch complete with mechanical and electrical interlocks to prevent reversing during normal operation. Include time delay relays pre-wired into the control circuit

5 21 May 2014 Page 4 in both hand and auto positions to prevent reversing the rotation for an adjustable interval of up to 3 minutes..20 Provide EEMAC Type 2 enclosures for all loose starters (not housed in an MCC)..21 For starters and disconnect switches located in areas accessible to the public (such as parking garages or outdoors) provide locking covers, operable with a single key for the entire project MOTOR CONTROL CENTRES.1 Meet Starters and Motor Control requirements..2 Provide Klockner-Moeller Modan 3000 NA motor control centres..3 Provide EEMAC Type 2 enclosures, Class II Type B construction, sprinkler-proof..4 Provide MCC s designed to clear 50,000 65, ,000 A RMS symmetrical fault current at 575 V..5 Provide MCC s capable of operating continuously in a {40ΕC} [104 F] environment..6 Construct control centre of independent vertical sections, front accessible only, with a maximum height of {2400 mm} [8 feet]..7 Provide a horizontal and vertical wiring trough in each vertical section. Protect horizontal wiring trough from the bus bars by means of a steel barrier plate. Equip each trough with cable supports. Provide a cutout in the end structure for continuous cable runs through the motor control centre. Run vertical wiring trough, {75 mm} [3 ] minimum, the full working height of each section and equip with cable tie clamps. Provide removable plates at the top of each section for access to the horizontal feeder bus and for conduit or bus duct entry..8 Equip all units with pan type doors. Hinge doors to the structure on the left hand side with concealed hinges and fasten with pressure type fasteners on the right hand side. Make padlocking provision..9 Equip each MCC with an appropriately sized ground bus at the bottom of each section complete with grounding lugs..10 Provide combination fusible or circuit breaker disconnect switch type starter units where scheduled, complete with adjustable overload relays, and control transformer with step down to 120 V..11 Interlock the external operating handle of each disconnecting device with the door so that the handle must be in the Off position before the door can be opened. Provide indication whether the disconnecting device is in the On or Off position for the operating handle..12 Provide bonderized standard grey baked enamel exterior finish, and white draw out interiors..13 For starters identified as requiring an interface with the fire alarm system and CACF, for life safety control, in the Starter and Disconnect Schedule, provide separate module section, terminal block, internal wiring and relays for motor shutdown in accordance with fire system requirements. Co-ordinate relay coil voltage with fire alarm system and CACF supplier under Division STARTERS, CONTACTORS AND MOTOR CONTROL

6 21 May 2014 Page 5.1 Provide refrigeration machine starters with the refrigeration machines. Manufacturer may be different than other starters..2 Starters and contactors factory built into the control panel of packaged equipment will be considered as an integral part of the package and may be from a different manufacturer..3 Refer to Division 26 for all other starters and contactors MOTOR CONTROL CENTRES.1 Refer to Division 26 for motor control centres. PART 3 - EXECUTION 3.1. INSTALLATION AND WIRING.1 Provide motors, starters, contactors, disconnect switches and control devices for Division 20 work..2 Provide all power wiring from load side of starters and contactors required for Division 20 work..3 Provide power wiring for electrical tracing, controls and elsewhere where required..4 Provide control wiring for all equipment provided or supplied under Division Provide all interlock connections and relays..6 Provide complete wiring diagrams of all controls and pilot circuits..7 Provide control wiring between kitchen exhaust hood control box and exhaust fan starter..8 Provide conduit and wiring materials and methods in strict accordance with Division 26 requirements..9 Make connections to motors in flexible sealtight conduit, and with sufficient material to reduce vibration transmission and to allow full travel of motor for belt adjustment..10 Install wiring materials parallel to or perpendicular to building planes..11 Provide Pyrotenax "MI" fire rated cable in accordance with OBC for power wiring and control wiring connected to life safety equipment. (Wiring located only within the room in which the equipment is located need not be fire rated.).12 Refer to Division 26 for:.1 Line side power wiring to loose starters, disconnects, MCC s and contactors..2 Normal and emergency power service locations INSTALLATION AND WIRING.1 Provide motors, starters, contactors, disconnect switches and control devices for Division 20 work..2 Provide control wiring for all equipment provided or supplied under Division 20.

7 21 May 2014 Page 6.3 Provide all interlock connections and relays..4 Provide complete wiring diagrams of all control and pilot circuits..5 Provide control wiring between kitchen exhaust hood control box and exhaust fan starter..6 Provide conduit and wiring in strict accordance with the requirements of Division Install wiring materials parallel to or perpendicular to building planes..8 Provide Pyrotenax MI fire rated cable in accordance with OBC for control wiring connected to life safety equipment. (Wiring located only within the room in which the equipment is located need not be fire rated)..9 Refer to Division 26 for:.1 Power wiring from load side of starters and contactors required for Division 20 work..2 Power wiring for electrical tracing, controls and elsewhere where required..3 Line side power wiring to loose starters, disconnects, MCC s and contactors..4 Normal and emergency power service locations INSTALLATION AND WIRING.1 Provide control wiring for all equipment provided or supplied under Division Provide conduit and wiring in strict accordance with the requirements of Division Provide all interlock connections and relays..4 Provide complete wiring diagrams of all control and pilot circuits..5 Refer to Division 26 for: 3.4. WARNING NOTICES.1 All MCC s, starters, disconnect switches, stop/start stations and lockout stops for mechanical equipment..2 All power wiring to mechanical equipment..3 Normal and emergency power service locations..4 Power wiring for electrical tracing..5 Power wiring for controls..1 Place warning notices at each starter and on or close to each motor under ECMS control..2 Provide conspicuous notices with bold lettering and advising that the motor is under ECMS control and may start at any time without warning. Submit notices at the shop drawing stage for Consultant review.

8 21 May 2014 Page 7 END OF SECTION